Alright, let's work through 6447 times 5158 step by step
6447 × 5158 = 5158 × (6447)
+ 5158 × 7 resulting in 36106
+ 5158 × 40 yielding 206320
+ 5158 × 400 which equals 2063200
+ 5158 × 6000 that is equal 30948000

= 33253626
